The members of the advisory board shall not receive salaries, but each member shall be reimbursed for his actual and reasonable expenses while attending a meeting or committee meeting of the advisory board or in performing a duty necessary to the functions and activities of the advisory board as determined by the commissioner. The monies required for payment to members of the advisory board as authorized pursuant to this section shall be paid by the commissioner, as trustee, from the funds obtained through assessments against producers pursuant to the terms of this Part.